vietnam veterans john mccain and hagel were mavericks in the senate. in 2000 hagel co-chaired mccain's campaign. he was only one of a handful of senators who endorsed him and at a town hall in nashua, new hampshire, mccain even floated this possibility -- >> as far as secretary of defense is concerned, there's a lot of people that could do that. one of them i think is senator chuck hagel. >> but yesterday the air in the hearing room was thick. maybe it was bitterness. we don't know. mccain may feel about his old friend as mccain hammered hagel for the opposition to the 2007 troop surge in iraq. >> were you correct or incorrect, yes or no? >> my reference to the surge being -- >> are you going to anxious the question, senator hagel? the question is, were you right or wrong? that's a pretty straightforward question. >> well, i'm not going to give you a -- a yes-or-no answer on a lot of things. >> let the record show you refused to answer that question. >> by the way, incoming secretary of state john kerry who glided through his nomination hearing was also opposed to the iraq surge.